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Proceedings Paper

Crystallization control of organic dyes in self-organized microdomes
Author(s): Olaf Karthaus; Kazuaki Kaga; Hiroaki Kageyama
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Paper Abstract

A dewetting process of an evaporating solution is used to form micrometer-sized amorphous droplets, or domes, of the solute on substrates such as silicon, mica, glass, and indium-tin-oxide. The dome size can be controlled by the casting conditions. Higher concentration and slower evaporation of the solvent leads to larger domes. Upon annealing, the dyes may crystallize and form polycrystalline or single crystalline domes or crystalline fibers. Photophysical properties of the domes were investigated and it was found that the absorption and fluorescence spectra depend on the aggregate kind (polycrystalline or single crystalline) and the dome size.

Paper Details

Date Published: 8 September 2004
PDF: 9 pages
Proc. SPIE 5464, Organic Optoelectronics and Photonics, (8 September 2004); doi: 10.1117/12.549131
Show Author Affiliations
Olaf Karthaus, Chitose Institute of Science and Technology (Japan)
Kazuaki Kaga, Chitose Institute of Science and Technology (Japan)
Hiroaki Kageyama, Chitose Institute of Science and Technology (Japan)

Published in SPIE Proceedings Vol. 5464:
Organic Optoelectronics and Photonics
Paul L. Heremans; Michele Muccini; Hans Hofstraat, Editor(s)

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